Bug 240776
| Summary: | iwm: Can't find wifi networks after short time since network restart | ||
|---|---|---|---|
| Product: | Base System | Reporter: | Johannes Lundberg <johalun> |
| Component: | wireless | Assignee: | freebsd-wireless (Nobody) <wireless> |
| Status: | Open --- | ||
| Severity: | Affects Only Me | CC: | bz, dch, dpetrov67, emaste, gnn, grahamperrin, kevans |
| Priority: | --- | Keywords: | needs-qa |
| Version: | CURRENT | Flags: | koobs:
mfc-stable12?
|
| Hardware: | amd64 | ||
| OS: | Any | ||
@Johannes Could you include: - Exact FreeBSD version (uname -a) And as attachments: - /var/run/dmesg.boot output - pciconf -lv output - ifconfig -a output on the wlan interface (once associated) - Any potentially relevant /var/log/messages (or console.log) messages - Enable net.wlan.debug sysctl , any relevant output You may also want to try (if relevant): - wpa_supplicant(8) -d = increase debugging verbosity - wlandebug(8) See Also: - base r324434 - Add support for Intel 8265 WiFi (committer cc'd) - https://lists.freebsd.org/pipermail/freebsd-questions/2017-July/278103.html I also note that man iwm only shows (explicit) support for: Intel Dual Band Wireless AC 8260 If 8265 / 8275 are explicitly supported, it may be worth adding these to the man page wpa_cli blacklist wpa_cli list_networks wpa_cli scan_results along with ifconfig wlan0 list scan and ifconfig -v wlan0 is probably also a good first start to see the current state at various levels. johalun@ are these Dell laptops still in use by you? (In reply to Kubilay Kocak from comment #1) > - Enable net.wlan.debug sysctl , any relevant output Context: wlan(4) DEBUGGING, <https://www.freebsd.org/cgi/man.cgi?query=wlan&sektion=4&manpath=FreeBSD#DEBUGGING> |
This has been a long existing problem for on my Dell laptops. Always running recent 13-CURRENT and the hardware is iwm0@pci0:2:0:0: class=0x028000 card=0x00508086 chip=0x24fd8086 rev=0x78 hdr=0x00 vendor = 'Intel Corporation' device = 'Wireless 8265 / 8275' class = network The other Dell laptop has the previous generation of this chip. After using the laptop "normally" (wired or wireless) for a while, it stops finding networks on scan with the result that roaming almost never works (it doesn't find other networks as I move between work-home). I've tested this with and without lagg failover configured. As soon as I do 'service netif restart' it can again see all networks with 'ifconfig wlan0 scan'. For a while that is. After a short time (sub-hour to hours), scan will show either only a subset of networks or none at all and the only remedy is to tear down the interfaces and configure them again.